11313113031 has 24 divisors (see below), whose sum is σ = 17830635264. Its totient is φ = 6854927760.

The previous prime is 11313113027. The next prime is 11313113059. The reversal of 11313113031 is 13031131311.

It is not a de Polignac number, because 11313113031 - 2² = 11313113027 is a prime.

It is a super-2 number, since 2×11313113031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11313112995 and 11313113013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11313114031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 583170 + ... + 602256.

It is an arithmetic number, because the mean of its divisors is an integer number (742943136).

Almost surely, 2^11313113031 is an apocalyptic number.

11313113031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11313113031 is a deficient number, since it is larger than the sum of its proper divisors (6517522233).

11313113031 is a wasteful number, since it uses less digits than its factorization.

11313113031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25091 (or 25088 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 18.

Adding to 11313113031 its reverse (13031131311), we get a palindrome (24344244342).

The spelling of 11313113031 in words is "eleven billion, three hundred thirteen million, one hundred thirteen thousand, thirty-one".